Автор - Beretergfre

3/4:5/8=

2x-3=15

Масштаб 1:4000

1).2 2).5

1,2/3-7/9=

Ответ

Автор - djdkdk92
3/4×8/5=6/5=1,2,2x-3=15,2x=18 ,x=9,1),5/3-7/9=3/9

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